--- a/mobile/android/app/mobile.js
+++ b/mobile/android/app/mobile.js
@@ -900,8 +900,11 @@ pref("dom.keyboardevent.dispatch_during_
 #if CPU_ARCH == aarch64
 pref("javascript.options.native_regexp", false);
 #endif
 
 // Ask for permission when enumerating WebRTC devices.
 pref("media.navigator.permission.device", true);
 
 pref("media.videocontrols.lock-video-orientation", true);
+
+// Allow system add-on updates
+pref("extensions.systemAddon.update.url", "https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml");